CA2359160C - A method in a working machine - Google Patents
A method in a working machine Download PDFInfo
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- CA2359160C CA2359160C CA002359160A CA2359160A CA2359160C CA 2359160 C CA2359160 C CA 2359160C CA 002359160 A CA002359160 A CA 002359160A CA 2359160 A CA2359160 A CA 2359160A CA 2359160 C CA2359160 C CA 2359160C
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000012544 monitoring process Methods 0.000 claims abstract description 110
- 230000033001 locomotion Effects 0.000 claims abstract description 47
- 238000010276 construction Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004424 eye movement Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/0633—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other pivotable about a vertical axis
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
- E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Forests & Forestry (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Ecology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Operation Control Of Excavators (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Vehicle Body Suspensions (AREA)
- Guiding Agricultural Machines (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Automatic Assembly (AREA)
- Component Parts Of Construction Machinery (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
A method in a working machine, comprising a frame movable by means of a wheelwork, the frame provided with a boom assembly movable around a first pivot point in a first angle sector. The free end of the boom assembly is provided with equipment for work performances to be carried out with the working machine, and the frame is provided with a cabin for the operator of the working machine, movable around a second pivot point in a second angle sector. To synchronize the movements of the boom assembly and the cabin, particularly for the purpose of optimizing the number of movements of the cabin during successive work performances performed by the equipment, a monitoring angle sector is selected for the cabin. The cabin is kept stationary, if the equipment is in the monitoring angle sector. After this, the cabin is moved to a new location of a new monitoring angle sector, if the equipment moves out of the location of the preceding monitoring angle sector.
Description
A METHOD IN A WORKING MACHINE
BACKGROUND OF THE INVENTION
1. Field of the invention The invention relates to a method in a working machine with a frame movable by means of a wheelwork, in connection with which frame a cabin equipped with a seat or the like is placed for the operator of the working machine, as well as a boom assembly movable around a first pivot point in a first angle sector, the free end of the boom assembly being provided with equipment for work performances to be carried out with the working machine, wherein the cabin and/or the seat or the like for the operator of the working machine is arranged to be movable around a second pivot point in a second angle sector.
BACKGROUND OF THE INVENTION
1. Field of the invention The invention relates to a method in a working machine with a frame movable by means of a wheelwork, in connection with which frame a cabin equipped with a seat or the like is placed for the operator of the working machine, as well as a boom assembly movable around a first pivot point in a first angle sector, the free end of the boom assembly being provided with equipment for work performances to be carried out with the working machine, wherein the cabin and/or the seat or the like for the operator of the working machine is arranged to be movable around a second pivot point in a second angle sector.
2. Description of the Related Art Particularly, but not solely, the method according to the invention is intended for use in forest working machines, such as forwarder, harvesters, harvester forwarders used as their combination, and tree-planting machines, whose basic construction is similar to that described in the preceding paragraph. Thus, both the boom assembly and the cabin and/or the seat or the like for the operator of the machine in the cabin are connected to the frame of the working machine in such a way that the boom assembly, on one hand, and the cabin and/or the seat for the operator of the machine in the cabin, on the other hand, can be rotated, irrespective of each other, around substantially vertical rotation axes (first and second pivot points). The operator of the working machine in the cabin must monitor the equipment located at the end of the boom assembly and performing movements in a wide sector as the work performances proceed, wherein the cabin is normally arranged, according to most current solutions, to continuously follow the movement of the equipment. As a result, the working conditions are not satisfactory for the operator of the working machine, because the cabin is in a continuous rotary motion during the work performances, the cabin following the movements of the equipment at the end of the boom assembly.
SUMMARY OF THE INVENTION
The aim of the present invention is to disclose a method in a working machine, whereby it is possible to avoid the drawbacks of prior art and thereby to achieve a functional system which provides, on one hand, efficient work performances and, on the other hand, advantageous working conditions for the operator of the working machine. To achieve these aims, the method according to the invention is primarily charac-terized in that, to synchronize the movements by the boom assembly and by the operator of the working machine, particularly for the pur-pose of optimizing the number of movements by the operator of the working machine during successive work performances based on the movements of the boom assembly and to be performed by the equip-ment, the following steps are taken:
- selecting a monitoring angle sector, or the like, for the operator of the working machine, as well as a location for the monitoring angle sector, in such a way that the equip-ment is situated in the monitoring angle sector, - keeping the operator of the working machine stationary, if the equipment is in the monitoring angle sector during the work performances, and - moving the operator of the working machine into a new location for a monitoring angle sector in such a way that the equipment is in the new monitoring angle sector, if the equipment moves outside the preceding monitoring angle sector.
When the equipment at the end of the boom assembly carries out work performances, for example felling, delimbing and cutting of a tree in the harvester application, in a specific, selected monitoring angle sector, cutting normally to a specific point of collection, the frontal direction of the operator of the working machine, i.e. the cabin and the seat or the like for the operator of the working machine, is normally stationary in relation to the frame of the working machine. Thus, the operator of the working machine, sitting in the cabin of the working machine, has con-trol over all the parts of the work performance which require visual per-ception, substantially by eye movements and, if necessary, also by lateral movements of the head in relation to the body. If the equipment moves outside the monitoring angle sector, the frontal direction of the operator of the working machine, i.e. the cabin and/or the seat or the like for the operator of the working machine, is moved by rotating around the second pivot point into a new position, wherein also the direction of the monitoring angle sector is naturally changed and, in this new position of the monitoring angle sector, new work performances are carried out with the equipment, the frontal direction of the operator of the working machine being stationary. In this description, the frontal direction refers to the direction which joins the direction of the bisectrix of the monitoring angle sector and which faces directly forward, the human body being placed symmetrically in relation to the vertical cen-tral line of the body, i.e. in a sitting position. The vertex of the monitor-ing angle sector is substantially at the second pivot point, and the sides limiting the monitoring angle sector are formed by two imaginary verti-cal planes and extend from the vertex of the sector at an angle to the frontal direction.
According to a particularly advantageous embodiment, the movement of the operator of the working machine is started with the aim of placing the operator of the working machine into a new position of the moni-toring angle sector, substantially simultaneously and in parallel with the direction of movement of the equipment, when the equipment moves outside the preceding position of the monitoring angle sector. With this solution, the operation of selecting a new monitoring angle sector can be immediately started, and it is also secured that the operator of the working machine can, in an advantageous working position, maintain a visual contact with the equipment which moved out of the preceding monitoring angle sector.
SUMMARY OF THE INVENTION
The aim of the present invention is to disclose a method in a working machine, whereby it is possible to avoid the drawbacks of prior art and thereby to achieve a functional system which provides, on one hand, efficient work performances and, on the other hand, advantageous working conditions for the operator of the working machine. To achieve these aims, the method according to the invention is primarily charac-terized in that, to synchronize the movements by the boom assembly and by the operator of the working machine, particularly for the pur-pose of optimizing the number of movements by the operator of the working machine during successive work performances based on the movements of the boom assembly and to be performed by the equip-ment, the following steps are taken:
- selecting a monitoring angle sector, or the like, for the operator of the working machine, as well as a location for the monitoring angle sector, in such a way that the equip-ment is situated in the monitoring angle sector, - keeping the operator of the working machine stationary, if the equipment is in the monitoring angle sector during the work performances, and - moving the operator of the working machine into a new location for a monitoring angle sector in such a way that the equipment is in the new monitoring angle sector, if the equipment moves outside the preceding monitoring angle sector.
When the equipment at the end of the boom assembly carries out work performances, for example felling, delimbing and cutting of a tree in the harvester application, in a specific, selected monitoring angle sector, cutting normally to a specific point of collection, the frontal direction of the operator of the working machine, i.e. the cabin and the seat or the like for the operator of the working machine, is normally stationary in relation to the frame of the working machine. Thus, the operator of the working machine, sitting in the cabin of the working machine, has con-trol over all the parts of the work performance which require visual per-ception, substantially by eye movements and, if necessary, also by lateral movements of the head in relation to the body. If the equipment moves outside the monitoring angle sector, the frontal direction of the operator of the working machine, i.e. the cabin and/or the seat or the like for the operator of the working machine, is moved by rotating around the second pivot point into a new position, wherein also the direction of the monitoring angle sector is naturally changed and, in this new position of the monitoring angle sector, new work performances are carried out with the equipment, the frontal direction of the operator of the working machine being stationary. In this description, the frontal direction refers to the direction which joins the direction of the bisectrix of the monitoring angle sector and which faces directly forward, the human body being placed symmetrically in relation to the vertical cen-tral line of the body, i.e. in a sitting position. The vertex of the monitor-ing angle sector is substantially at the second pivot point, and the sides limiting the monitoring angle sector are formed by two imaginary verti-cal planes and extend from the vertex of the sector at an angle to the frontal direction.
According to a particularly advantageous embodiment, the movement of the operator of the working machine is started with the aim of placing the operator of the working machine into a new position of the moni-toring angle sector, substantially simultaneously and in parallel with the direction of movement of the equipment, when the equipment moves outside the preceding position of the monitoring angle sector. With this solution, the operation of selecting a new monitoring angle sector can be immediately started, and it is also secured that the operator of the working machine can, in an advantageous working position, maintain a visual contact with the equipment which moved out of the preceding monitoring angle sector.
According to an important application, a new position of the monitoring angle sector is selected for the operator of the working machine, when it is detected that the movement of the equipment outside the preced-ing monitoring angle sector complies with the definition of a selection parameter set for selecting the new monitoring angle sector. According to the first alternative of the above embodiment, the first selection parameter, and thereby the point on the basis of which the position for new monitoring angle sector is selected, is selected to be the point at which the equipment and the monitoring angle sector of the operator of the working machine, following the movement of the equipment, preferably a side of the monitoring angle sector, meet, if A) the direc-tion of transfer of the equipment moved outside the preceding moni-toring angle sector, which is stationary in relation to the frame of the working machine, is changed, and B) if the equipment and the moni-toring angle sector of the operator of the working machine, following the movement of the equipment, preferably a side of the monitoring angle sector, meet. Furthermore, according to a second alternative of the application, the second selection parameter is selected to be the combination of a) selected minimum speed of the equipment and b) selected time of movement of the equipment at the minimum speed at the most, wherein C) if the equipment moves at the selected minimum speed, at the most, and D) if the duration of the movement performed at said minimum speed is at least the selected time, the position for the new monitoring angle sector is selected on the basis of the position satisfying the steps C) and D) of the equipment. Typically, a situation in which the definitions for the selection parameter are fulfilled, is, in the harvester application, the step of gripping a tree to be felled next, or the transfer of a felled tree trunk to a processing location. With these alter-native definitions for the selection parameter, it is possible to control the situations of selecting the position for the new monitoring angle sector after the equipment has moved outside the preceding monitoring angle sector.
The appended other dependent claims related to the method present some other advantageous embodiments of the method according to the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following specification, the method according to the invention will 5 be described in more detail with reference to the embodiment shown in the appended drawing. In the drawing, Fig. 1 shows schematically, seen from above, the normal applica-tion of the method, wherein a boom assembly and equip-ment at its end are placed in a monitoring angle sector, and a cabin and/or a seat or the like in the cabin is stationary, Fig. 2 shows schematically, seen from above, a situation of apply-ing the method, in which the equipment at the end of the boom assembly has moved outside the monitoring angle sector, and the transfer of the cabin and/or the seat or the like in the cabin is started, Fig. 3a shows schematically, seen from above, a situation, in which the equipment at the end of the boom assembly has, after its movement outside the preceding monitoring angle sec-tor, changed its direction of motion to the opposite and meets the side of the monitoring angle sector moving with the movement of the cabin and/or the seat or the like in the cabin, Fig. 3b, in turn, shows, also schematically and seen from above, a situation in which the equipment at the end of the boom assembly has moved, for example substantially in the same direction after it has exited the preceding monitoring angle sector, and the value for determining the selection parameter has been fulfilled (e.g. the stage of starting a new work performance), wherein the cabin and/or the seat or the like in the cabin is, according to the selected way of directing the monitoring angle sector, stopped to a new monitoring angle sector position, and Fig. 4 shows, also schematically and seen from above, work per-formances to be performed by the equipment at the end of the boom assembly in the new monitoring angle sector position.
DETAILED DESCRIPTION OF THE INVENTION
In the following description, the method according to the invention will be illustrated according to an embodiment based solely on the move-ments of the cabin. It is obvious that corresponding functions can be implemented in an analog way with a movable seat or the like in a working machine equipped with a stationary cabin, as well as with a combination of a movable cabin and a movable seat or the like.
In Figs. 1 to 4, reference numeral 1 indicates a boom assembly which is connected at its first end to the frame 2 of a working machine, such as a forest machine (shown schematically with broken lines in Figs. 1 to 4). The method according to the invention is based on the fact that during the application of the method, the frame 2 is substantially immovable and stationary in relation to the terrain. When the frame 2 of the working machine is transferred to the next working location, the application of the method can be continued within the scope of the possibilities offered by said working location. In a corresponding man-ner, the cabin 3 is also connected to the frame 2 of the working machine. The frame 2 is equipped with a wheelwork for moving on a terrain. Working machine applications of this kind, particularly forest machine applications, are commonly known, wherein their detailed construction does not need to be described more closely in this con-text, but reference is made to patents in the field.
The boom assembly 1 is connected to the frame 2 to be movable around the first vertical pivot point 1 a in a first angle sector EKS. Tak-ing the central line K in the longitudinal direction of the frame 2 in Fig. 1 as the reference line, the first angle sector EKS, in relation to the cen-tral line K of the boom assembly 1, normally ranges from 950 to 120 . The free end of the boom assembly 1 is provided with equip-ment lb for work performances to be carried out with the working machine. In forest machine applications, this equipment lb may be a grapple, a harvester, a harvester grapple used as a combination of these, or a tree-planting unit, according to the use.
The cabin 3, in turn, is arranged to be movable by rotating around the second vertical pivot point 3a in a second angle sector TKS. According to normal practice, the cabin 3 is provided with a seat for the operator of the working machine, the seat being fixed or similarly arranged to be rotatable around the second vertical pivot point 3a. The cabin 3 is equipped with a wall structure which is transparent in its substantial parts. The second angle sector TKS normally ranges from 45 to 90 in relation to said central line K. According to the basic idea of the invention, a monitoring angle sector 4 is selected for the cabin 3, which sector can be selected according to the work performance or the use of the working machine. Normally, the sector angle of the monitoring angle sector ranges from 10 to 110 , advantageously from 35 to 80 and preferably from 25 to 60 .
Figure 1 shows a normal situation of applying work performances, wherein the equipment 1 b is placed in the monitoring angle sector 4 corresponding to the location of the cabin 3, and the cabin 3 is station-ary. The equipment lb can now be used for carrying out all work per-formances, wherein these work performances, to be carried out by means of these control devices in connection with the seat, are moni-tored in such a way that the operator of the working machine watches the movements of the equipment 1 b in the monitoring angle sector 4 by maintaining a visual contact with it, possibly helping with movements of his head.
When, in the situation of Fig. 1, the performance has proceeded to the step in which, in view of the procedure of the overall work performance, it is necessary to move out of the monitoring angle sector 4, a shift is made, for example, to the situation of Fig. 2, in which the equipment 1 b at the end of the boom assembly 1 has moved, seen from above the (preceding) monitoring angle sector 4, across the right side 4a. This shift can be detected by a suitable sensor technique whereby, first of all, the magnitude of the monitoring angle sector is selected in the cabin 3 and, on the other hand, by placing a suitable sensor in connec-tion with the boom assembly and/or the equipment 1 b. According to an advantageous embodiment of the invention, the movement of the operator of the working machine is started, with the aim of achieving a new monitoring angle sector, substantially simultaneously and in par-allel with the direction of the movement of the equipment 1 b (arrow OS, clockwise rotation of the cabin 3 in Fig. 2), when the equipment 1 b moves outside the location of the preceding monitoring angle sector 4.
From the mutual position of the locations of the equipment lb and the preceding monitoring angle sector 4 in Fig. 2, the next step, according to further movements of the equipment 1 b which meet the require-ments of the work performances, is to proceed to situations shown by either Fig. 3a or Fig. 3b. Thus, a new location is selected for the moni-toring angle sector 4' of the operator of the working machine, when it is detected that the movement of the equipment 1 b outside the preceding monitoring angle sector 4 fulfills the definition of the selection parame-ter.
According to Fig. 3a, the first selection parameter and thereby the selection criterion for the location of the new monitoring angle sector 4' is selected to be the point of intersection between the equipment 1 b, on one hand, and the point selected for the monitoring angle sector L4 moving with the operator of the working machine, following the move-ment of the equipment 1 b, preferably the side 4a of the monitoring angle sector L4, on the other hand. This intersection meets the defini-tions for the first selection criterion, if the direction of movement of the equipment 1 b transferred outside the preceding angle sector 4 (Fig. 2) is changed (from the clockwise movement around the first pivot point in Fig. 2 to counter-clockwise according to Fig. 3a) as well as if the equipment 1 b and the selected monitoring angle sector L4 following the movement of the equipment 1 b and moving with the operator of the working machine meet, i.e. the equipment 1 b moves to the range of the monitoring angle sector L4 moving towards it.
According to Fig. 3b, the second selection parameter is selected to be the combination of a) the selected minimum speed of the equipment 1 b and b) the selected time when the equipment has moved not faster than at the minimum speed, wherein if the equipment lb moves not faster than at the selected minimum speed, and if the duration of the movement performed at said minimum speed exceeds the selected time, the position of the equipment 1 b is selected as a criterion for selecting a location for the new monitoring angle sector 4'. Thus, in practice, the minimum speed of the equipment 1 b is, according to one embodiment, one meter per second (1 m/s; point a), and the time is two seconds (2 s; point b). If the equipment 1 b is totally stopped, the time which fulfills the definition for the selection criterion is three seconds (3 s). Figure 3b shows a situation, in which the equipment 1 b is within the range of the moving monitoring angle sector L4 when the definition of the second selection criterion is fulfilled.
When the selection parameter is fulfilled, in the alternatives of Figs. 3a and 3b, the cabin 3 is moved to a new location of the monitoring angle sector 4' in such a way that the centre of the new, stationary monitoring angle sector 4', preferably the bisectrix 4b' of the sector angle, sub-stantially passes through the point of intersection between the moving monitoring angle sector L4, which fulfills the criteria for the selection parameter of the movement of the equipment 1 b outside the preceding monitoring angle sector 4, and the equipment 1 b (first selection parameter EV, Fig. 3a), in the range of deceleration or at the end point of the movement of the equipment 1 b (second selection parameter TV, Fig. 3b). After the Figs. 3a and 3b, the working with the working machine is continued as shown in Fig. 4, the cabin 3 being located in the new monitoring angle sector 4' as long as the equipment 1 b is placed in the range of the new, stationary monitoring angle sector 4'.
The present invention is not limited solely to the above-presented and exemplified preferred embodiments, but it can be modified within the scope of the appended claims.
The appended other dependent claims related to the method present some other advantageous embodiments of the method according to the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following specification, the method according to the invention will 5 be described in more detail with reference to the embodiment shown in the appended drawing. In the drawing, Fig. 1 shows schematically, seen from above, the normal applica-tion of the method, wherein a boom assembly and equip-ment at its end are placed in a monitoring angle sector, and a cabin and/or a seat or the like in the cabin is stationary, Fig. 2 shows schematically, seen from above, a situation of apply-ing the method, in which the equipment at the end of the boom assembly has moved outside the monitoring angle sector, and the transfer of the cabin and/or the seat or the like in the cabin is started, Fig. 3a shows schematically, seen from above, a situation, in which the equipment at the end of the boom assembly has, after its movement outside the preceding monitoring angle sec-tor, changed its direction of motion to the opposite and meets the side of the monitoring angle sector moving with the movement of the cabin and/or the seat or the like in the cabin, Fig. 3b, in turn, shows, also schematically and seen from above, a situation in which the equipment at the end of the boom assembly has moved, for example substantially in the same direction after it has exited the preceding monitoring angle sector, and the value for determining the selection parameter has been fulfilled (e.g. the stage of starting a new work performance), wherein the cabin and/or the seat or the like in the cabin is, according to the selected way of directing the monitoring angle sector, stopped to a new monitoring angle sector position, and Fig. 4 shows, also schematically and seen from above, work per-formances to be performed by the equipment at the end of the boom assembly in the new monitoring angle sector position.
DETAILED DESCRIPTION OF THE INVENTION
In the following description, the method according to the invention will be illustrated according to an embodiment based solely on the move-ments of the cabin. It is obvious that corresponding functions can be implemented in an analog way with a movable seat or the like in a working machine equipped with a stationary cabin, as well as with a combination of a movable cabin and a movable seat or the like.
In Figs. 1 to 4, reference numeral 1 indicates a boom assembly which is connected at its first end to the frame 2 of a working machine, such as a forest machine (shown schematically with broken lines in Figs. 1 to 4). The method according to the invention is based on the fact that during the application of the method, the frame 2 is substantially immovable and stationary in relation to the terrain. When the frame 2 of the working machine is transferred to the next working location, the application of the method can be continued within the scope of the possibilities offered by said working location. In a corresponding man-ner, the cabin 3 is also connected to the frame 2 of the working machine. The frame 2 is equipped with a wheelwork for moving on a terrain. Working machine applications of this kind, particularly forest machine applications, are commonly known, wherein their detailed construction does not need to be described more closely in this con-text, but reference is made to patents in the field.
The boom assembly 1 is connected to the frame 2 to be movable around the first vertical pivot point 1 a in a first angle sector EKS. Tak-ing the central line K in the longitudinal direction of the frame 2 in Fig. 1 as the reference line, the first angle sector EKS, in relation to the cen-tral line K of the boom assembly 1, normally ranges from 950 to 120 . The free end of the boom assembly 1 is provided with equip-ment lb for work performances to be carried out with the working machine. In forest machine applications, this equipment lb may be a grapple, a harvester, a harvester grapple used as a combination of these, or a tree-planting unit, according to the use.
The cabin 3, in turn, is arranged to be movable by rotating around the second vertical pivot point 3a in a second angle sector TKS. According to normal practice, the cabin 3 is provided with a seat for the operator of the working machine, the seat being fixed or similarly arranged to be rotatable around the second vertical pivot point 3a. The cabin 3 is equipped with a wall structure which is transparent in its substantial parts. The second angle sector TKS normally ranges from 45 to 90 in relation to said central line K. According to the basic idea of the invention, a monitoring angle sector 4 is selected for the cabin 3, which sector can be selected according to the work performance or the use of the working machine. Normally, the sector angle of the monitoring angle sector ranges from 10 to 110 , advantageously from 35 to 80 and preferably from 25 to 60 .
Figure 1 shows a normal situation of applying work performances, wherein the equipment 1 b is placed in the monitoring angle sector 4 corresponding to the location of the cabin 3, and the cabin 3 is station-ary. The equipment lb can now be used for carrying out all work per-formances, wherein these work performances, to be carried out by means of these control devices in connection with the seat, are moni-tored in such a way that the operator of the working machine watches the movements of the equipment 1 b in the monitoring angle sector 4 by maintaining a visual contact with it, possibly helping with movements of his head.
When, in the situation of Fig. 1, the performance has proceeded to the step in which, in view of the procedure of the overall work performance, it is necessary to move out of the monitoring angle sector 4, a shift is made, for example, to the situation of Fig. 2, in which the equipment 1 b at the end of the boom assembly 1 has moved, seen from above the (preceding) monitoring angle sector 4, across the right side 4a. This shift can be detected by a suitable sensor technique whereby, first of all, the magnitude of the monitoring angle sector is selected in the cabin 3 and, on the other hand, by placing a suitable sensor in connec-tion with the boom assembly and/or the equipment 1 b. According to an advantageous embodiment of the invention, the movement of the operator of the working machine is started, with the aim of achieving a new monitoring angle sector, substantially simultaneously and in par-allel with the direction of the movement of the equipment 1 b (arrow OS, clockwise rotation of the cabin 3 in Fig. 2), when the equipment 1 b moves outside the location of the preceding monitoring angle sector 4.
From the mutual position of the locations of the equipment lb and the preceding monitoring angle sector 4 in Fig. 2, the next step, according to further movements of the equipment 1 b which meet the require-ments of the work performances, is to proceed to situations shown by either Fig. 3a or Fig. 3b. Thus, a new location is selected for the moni-toring angle sector 4' of the operator of the working machine, when it is detected that the movement of the equipment 1 b outside the preceding monitoring angle sector 4 fulfills the definition of the selection parame-ter.
According to Fig. 3a, the first selection parameter and thereby the selection criterion for the location of the new monitoring angle sector 4' is selected to be the point of intersection between the equipment 1 b, on one hand, and the point selected for the monitoring angle sector L4 moving with the operator of the working machine, following the move-ment of the equipment 1 b, preferably the side 4a of the monitoring angle sector L4, on the other hand. This intersection meets the defini-tions for the first selection criterion, if the direction of movement of the equipment 1 b transferred outside the preceding angle sector 4 (Fig. 2) is changed (from the clockwise movement around the first pivot point in Fig. 2 to counter-clockwise according to Fig. 3a) as well as if the equipment 1 b and the selected monitoring angle sector L4 following the movement of the equipment 1 b and moving with the operator of the working machine meet, i.e. the equipment 1 b moves to the range of the monitoring angle sector L4 moving towards it.
According to Fig. 3b, the second selection parameter is selected to be the combination of a) the selected minimum speed of the equipment 1 b and b) the selected time when the equipment has moved not faster than at the minimum speed, wherein if the equipment lb moves not faster than at the selected minimum speed, and if the duration of the movement performed at said minimum speed exceeds the selected time, the position of the equipment 1 b is selected as a criterion for selecting a location for the new monitoring angle sector 4'. Thus, in practice, the minimum speed of the equipment 1 b is, according to one embodiment, one meter per second (1 m/s; point a), and the time is two seconds (2 s; point b). If the equipment 1 b is totally stopped, the time which fulfills the definition for the selection criterion is three seconds (3 s). Figure 3b shows a situation, in which the equipment 1 b is within the range of the moving monitoring angle sector L4 when the definition of the second selection criterion is fulfilled.
When the selection parameter is fulfilled, in the alternatives of Figs. 3a and 3b, the cabin 3 is moved to a new location of the monitoring angle sector 4' in such a way that the centre of the new, stationary monitoring angle sector 4', preferably the bisectrix 4b' of the sector angle, sub-stantially passes through the point of intersection between the moving monitoring angle sector L4, which fulfills the criteria for the selection parameter of the movement of the equipment 1 b outside the preceding monitoring angle sector 4, and the equipment 1 b (first selection parameter EV, Fig. 3a), in the range of deceleration or at the end point of the movement of the equipment 1 b (second selection parameter TV, Fig. 3b). After the Figs. 3a and 3b, the working with the working machine is continued as shown in Fig. 4, the cabin 3 being located in the new monitoring angle sector 4' as long as the equipment 1 b is placed in the range of the new, stationary monitoring angle sector 4'.
The present invention is not limited solely to the above-presented and exemplified preferred embodiments, but it can be modified within the scope of the appended claims.
Claims (19)
1. A method in a working machine, comprising a frame movable by means of a wheelwork, the frame provided with a cabin equipped with a seat for the operator of the working machine, as well as a boom assembly movable around a first pivot point in a first angle sector, wherein the free end of the boom assembly is provided with equipment for work performances to be carried out with the working machine, wherein the cabin or the seat is arranged to be movable around a second pivot point in a second angle sector, and wherein, to synchronize the movements of the boom assembly and the operator, the method comprising the following steps of:
selecting a monitoring angle sector for the operator as well as a location for the monitoring angle sector in such a way that the equipment is situated in the monitoring angle sector, keeping the operator in position, if the equipment is in the monitoring angle sector during the work performances, and moving the operator to a new location for a new monitoring angle sector in such a way that the equipment is in the new monitoring angle sector, if the equipment moves out of the preceding monitoring angle sector.
selecting a monitoring angle sector for the operator as well as a location for the monitoring angle sector in such a way that the equipment is situated in the monitoring angle sector, keeping the operator in position, if the equipment is in the monitoring angle sector during the work performances, and moving the operator to a new location for a new monitoring angle sector in such a way that the equipment is in the new monitoring angle sector, if the equipment moves out of the preceding monitoring angle sector.
2. The method according to claim 1, wherein the method further comprises the step of starting the movement of the operator with the aim of placing the operator into the new monitoring angle sector position, substantially simultaneously with and in the same direction as the movement of the equipment, when the equipment moves out of the preceding monitoring angle sector position.
3. The method according to claim 1, wherein the method further comprises the step of selecting the new location for the new monitoring angle sector for the operator, when it is detected that the movement of the equipment outside the preceding monitoring angle sector fulfills the definition of a selection parameter set for the selection of the new monitoring angle sector.
4. The method according to claim 1, wherein the method further comprises the step of selecting as a first selection parameter and thereby as the point, on the basis of which the location of the new monitoring angle sector is selected, a point of intersection between the equipment and the monitoring angle sector moving with the operator, following the movement of the equipment, if A): the direction of movement of the equipment shifted outside the preceding monitoring angle sector is changed, and B): if the equipment and the monitoring angle sector of the operator, following the movement of the equipment, meet.
5. The method according to claim 1, wherein the method further comprises the step of selecting as a second selection parameter the combination of a): selected minimum speed of the equipment, and b): selected time of movement of the equipment at or below the minimum speed, and wherein, step C): if the equipment moves at the selected minimum speed, at the most, and step D): if the duration of the movement performed at said minimum speed is at least the selected time, selecting the position for the new monitoring angle sector on the basis of the position satisfying the steps C) and D) of the equipment.
6. The method according to claim 3, wherein the method further comprises the step of moving the operator to the new location of the new monitoring angle sector in such a way that the center of the new monitoring angle sector of the equipment substantially passes through that location of the equipment which, after the movement of the equipment out of the preceding monitoring angle sector, fulfills the criteria for the selection parameter set for the selection of the new monitoring angle sector.
7. The method according to claim 1, wherein the method further comprises the step of selecting the magnitude for the sector angle for the monitoring angle sector.
8. The method according to claim 1, wherein the method further comprises the step of selecting the sector angle for the monitoring angle sector to range from 10° to 110°.
9. The method according to claim 5, wherein the method further comprises the step of selecting as the second selection parameter the combination of a): the selected minimum speed for the equipment, wherein the minimum speed is one meter per second (1 m/s), and b): the selected time when the equipment has moved not faster than at the minimum speed, wherein the time is at least two seconds (2 s).
10. The method according to claim 5, wherein the method further comprises the steps of selecting as the second selection parameter the combination of a): the selected minimum speed of the equipment, wherein when the minimum speed is zero meters per second (0 m/s), and selecting the time for the part b) for the second selection parameter to be at least three seconds (3 s).
11. The method according to claim 2, wherein the method further comprises the step of selecting the new location for the new monitoring angle sector for the operator, when it is detected that the movement of the equipment outside the preceding monitoring angle sector fulfills the definition of a selection parameter set for the selection of the new monitoring angle sector.
12. The method according to claim 4, wherein the method further comprises the step of moving the operator to the new location of the new monitoring angle sector in such a way that the center of the new monitoring angle sector of the equipment substantially passes through that location of the equipment which, after the movement of the equipment out of the preceding monitoring angle sector, fulfills the criteria for the selection parameter set for the first selection of the new monitoring angle sector.
13. The method according to claim 5, wherein the method further comprises the step of moving the operator to the new location of the new monitoring angle sector in such a way that the center of the new monitoring angle sector of the equipment substantially passes through that location of the equipment which after the movement of the equipment out of the preceding monitoring angle sector, fulfills the criteria for the selection parameter set for the second selection of the new monitoring angle sector.
14. The method according to claim 4, wherein the step of selecting the point of intersection comprises selecting the point of intersection between the equipment and a side of the monitoring angle sector moving with the operator.
15. The method according to claim 6, wherein the center of the new monitoring angle sector of the equipment is the bisectrix of the new monitoring angle sector.
16. The method as defined in claim 1, wherein the method further comprises the step of selecting the sector angle for the monitoring angle sector in a range from 35° to 80°.
17. The method as defined in claim 1, wherein the method further comprises the step of selecting the sector angle for the monitoring angle sector in a range from 25° to 60°.
18. The method according to claim 12, wherein the center of the new monitoring angle sector of the equipment is the bisectrix of the new monitoring angle sector.
19. The method according to claim 13, wherein the center of the new monitoring angle sector of the equipment is the bisectrix of the new monitoring angle sector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20002338A FI110502B (en) | 2000-10-24 | 2000-10-24 | Method in a machine tool |
| FI20002338 | 2000-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2359160A1 CA2359160A1 (en) | 2002-04-24 |
| CA2359160C true CA2359160C (en) | 2008-02-12 |
Family
ID=8559353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002359160A Expired - Fee Related CA2359160C (en) | 2000-10-24 | 2001-10-17 | A method in a working machine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6637532B2 (en) |
| EP (1) | EP1201832B1 (en) |
| AT (1) | ATE269453T1 (en) |
| CA (1) | CA2359160C (en) |
| DE (1) | DE60103832T2 (en) |
| ES (1) | ES2223762T3 (en) |
| FI (1) | FI110502B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6738695B1 (en) * | 2002-12-16 | 2004-05-18 | Caterpillar Inc | System and method for initializing autoguidance for a mobile machine |
| FI117624B (en) * | 2003-01-24 | 2006-12-29 | John Deere Forestry Oy | Controlling a forestry machine crane while driving |
| WO2011150419A1 (en) | 2010-05-28 | 2011-12-01 | Massachusetts Institute Of Technology | Mechanical testing system and method |
| US9200429B2 (en) * | 2013-10-31 | 2015-12-01 | Deere & Company | Work vehicle with loader controlled cab tilting |
| WO2017216945A1 (en) * | 2016-06-17 | 2017-12-21 | 株式会社前田製作所 | Mobile crane |
| FI130760B1 (en) * | 2022-01-26 | 2024-02-29 | Ponsse Oyj | Seat Control Arrangement of Forest Machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1211815A (en) | 1968-06-20 | 1970-11-11 | Karl Schaeff K G Maschinenfabr | Improvements in vehicles with rear sluable implements, for example excavators or rock drills or cranes |
| US3568778A (en) | 1969-01-23 | 1971-03-09 | Cmi Corp | Motor grader apparatus |
| US3807586A (en) * | 1971-06-07 | 1974-04-30 | Channel Construction Inc | Material handling apparatus |
| FI760190A (en) | 1975-01-28 | 1976-07-29 | Os Bad Rozwojowy Maszyn Budowl | |
| FI64085C (en) * | 1977-10-21 | 1983-10-10 | Konetehdas Norcar | ANORDNING VID DRAGBOM FOER SLAEPVAGN |
| SE425649B (en) * | 1981-03-13 | 1982-10-25 | Kockums Ind Ab | CLEANING, MIDDLE-DRIVE WORKING VEHICLE |
| SE425648B (en) | 1981-03-13 | 1982-10-25 | Kockums Ind Ab | WHEEL-WORKED VEHICLE WITH LOADS |
| DE3817645C2 (en) | 1988-05-25 | 1994-11-03 | Fraunhofer Ges Forschung | Driver's cabin with swivel system |
-
2000
- 2000-10-24 FI FI20002338A patent/FI110502B/en not_active IP Right Cessation
-
2001
- 2001-10-17 CA CA002359160A patent/CA2359160C/en not_active Expired - Fee Related
- 2001-10-19 AT AT01660195T patent/ATE269453T1/en not_active IP Right Cessation
- 2001-10-19 EP EP01660195A patent/EP1201832B1/en not_active Expired - Lifetime
- 2001-10-19 DE DE60103832T patent/DE60103832T2/en not_active Expired - Lifetime
- 2001-10-19 US US10/035,611 patent/US6637532B2/en not_active Expired - Lifetime
- 2001-10-19 ES ES01660195T patent/ES2223762T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1201832A1 (en) | 2002-05-02 |
| US20020053442A1 (en) | 2002-05-09 |
| FI20002338A0 (en) | 2000-10-24 |
| ATE269453T1 (en) | 2004-07-15 |
| FI20002338A (en) | 2002-04-25 |
| US6637532B2 (en) | 2003-10-28 |
| ES2223762T3 (en) | 2005-03-01 |
| DE60103832T2 (en) | 2005-07-14 |
| FI110502B (en) | 2003-02-14 |
| DE60103832D1 (en) | 2004-07-22 |
| EP1201832B1 (en) | 2004-06-16 |
| CA2359160A1 (en) | 2002-04-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20161017 |